Grand Seiko
Grand Seiko Evolution 9 Spring Drive Watch (SBGC251G)
FEATURES
Grand Seiko Evolution 9 Collection Chronograph GMT
Powered by Caliber 9R86, this Spring Drive chronograph delivers state of the art precision in the measurement of time of day and elapsed time and yet has a quiet and refined aspect that belies its high functionality. The chronograph measures elapsed time up to 12 hours and the seconds hand moves in perfect, continuous and silent glide motion as it does so. The GMT hand allows time in another time zone to be shown exactly and the hour hand can be adjusted to a new zone without compromising the accuracy of the timekeeping. The case is in high intensity titanium, a material that is 30% lighter than steel and yet more impervious to scratches and corrosion. This is a chronograph of true authority.
Exterior
| Exterior: | High-intensity titanium |
|---|---|
| Case back: | See-through & Screw case back |
| Glass Material: | Dual-curved sapphire crystal |
| Glass Coating: | Anti-reflective coating on inner surface |
| LumiBrite: | LumiBrite on hands, index(es) and bezel |
| Case size: | Diameter 45.3mm Lug-to-lug 52.6mm Thickness 15.8mm |
| Band width: | 23mm |
| Clasp type: | Three-fold clasp with push button release |
| The perimeter of Band: | 197mm |
Movement
| Caliber no.: | 9R86 Instructions |
|---|---|
| Movement Type: | Spring Drive |
| Power reserve: | Approx. 72 hours(3 days) |
| Accuracy: | ±15 seconds per month (±1 second per day) |
Functions
| Water resistance: | 10 bar |
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| Magnetic resistance: | 4,800 A/m |
| Other details / Features: |
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